@article{journals/cg/DavidZZ79,
	title = {Teaching CAD in an architectural school with the SIGMA-ARCHI system.},
	author = {B. David and F. Zanelli and François-Joseph Z'Graggen},
	journal = {Computers & Graphics},
	number = {3-4},
	pages = {193-199},
	url = {http://dblp.uni-trier.de/db/journals/cg/cg4.html#DavidZZ79},
	volume = {4},
	year = {1979},
	biburl = {http://www.bibsonomy.org/bibtex/29f80beebf7b07dbe2e381c4cc2682760/dblp},
	description = {dblp},
	ee = {http://dx.doi.org/10.1016/0097-8493(79)90022-0}, date = {2005-11-03},
	keywords = {dblp }
}